CA2463385A1 - An apparatus for monitoring the presence of secretions in the respiratory system of a patient - Google Patents
An apparatus for monitoring the presence of secretions in the respiratory system of a patient Download PDFInfo
- Publication number
- CA2463385A1 CA2463385A1 CA002463385A CA2463385A CA2463385A1 CA 2463385 A1 CA2463385 A1 CA 2463385A1 CA 002463385 A CA002463385 A CA 002463385A CA 2463385 A CA2463385 A CA 2463385A CA 2463385 A1 CA2463385 A1 CA 2463385A1
- Authority
- CA
- Canada
- Prior art keywords
- signal
- main
- auxiliary
- waves
- sensing element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B7/00—Instruments for auscultation
- A61B7/003—Detecting lung or respiration noise
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Pulmonology (AREA)
- Engineering & Computer Science (AREA)
- Veterinary Medicine (AREA)
- Physiology (AREA)
- Physics & Mathematics (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
- Measuring And Recording Apparatus For Diagnosis (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Medical Preparation Storing Or Oral Administration Devices (AREA)
Abstract
An apparatus for monitoring the presence of secretions in an artificial respiratory system comprises at least one sensing element (20) to detect wav es generated by said secretions and output a main signal (50), representative o f at least one main parameter characteristic of the waves; a first processing block (30) connected downstream of said first sensing element (20), is set t o input the main signal (50) and to generate a corresponding main output alarm signal (51), in the case in which the main parameter has a greater value tha n a predetermined threshold value.
Claims (21)
1. An apparatus for monitoring the presence of secretions in the respiratory system of a patient provided with a respiratory prothesis, having at least one tubular duct (10) consisting of a first portion (10a) at least partly insertable in the patient's orotracheal cavity and of a second portion (10b) to be positioned externally of the tracheal cavity, characterized in that it comprises:
- at least one sensing element (20) to be associated with the tubular duct (10) to detect waves generated by said secretions and output a main signal (50), representative of at least one main parameter characteristic of said waves, said main signal (50) being defined by one or more spectral components, each having a respective amplitude;
- a first processing block (30), connected downstream of said first sensing element (20) and set to input said main signal (50) and generate a corresponding main output alarm signal (51), in the case in which said main parameter has a value greater than a predetermined threshold value.
- at least one sensing element (20) to be associated with the tubular duct (10) to detect waves generated by said secretions and output a main signal (50), representative of at least one main parameter characteristic of said waves, said main signal (50) being defined by one or more spectral components, each having a respective amplitude;
- a first processing block (30), connected downstream of said first sensing element (20) and set to input said main signal (50) and generate a corresponding main output alarm signal (51), in the case in which said main parameter has a value greater than a predetermined threshold value.
2. An apparatus as claimed in claim 1, characterized in that said first sensing element (20) comprises an acoustic detector (21), capable of detecting said waves, which waves comprise acoustic vibrations generated by said secretions and propagating through the gases present in said duct (10).
3. An apparatus as claimed in claim 2, characterized in that said acoustic detector (21) is a microphone of the electret type.
4. An apparatus as claimed in anyone of the preceding claims characterized in that said first sensing element (20) is positioned in a housing (11) defined in a sound-proofing wall (12) of the tubular duct (10).
5. An apparatus as claimed in claim 2, characterized in that it further comprises:
- a second sensing element (60) to be associated with said tubular duct to detect the waves generated by said secretions and output an auxiliary signal (70), representative of at least one auxiliary parameter characteristic of said waves, said auxiliary signal (70) being defined by one or more spectral components, each having a respective amplitude;
- a second processing block (80), connected downstream of said second sensing element (60) and set to input said auxiliary signal (70) and generate a corresponding auxiliary output alarm signal (71), in the case in which said auxiliary parameter has a greater value than a predetermined threshold value.
- a second sensing element (60) to be associated with said tubular duct to detect the waves generated by said secretions and output an auxiliary signal (70), representative of at least one auxiliary parameter characteristic of said waves, said auxiliary signal (70) being defined by one or more spectral components, each having a respective amplitude;
- a second processing block (80), connected downstream of said second sensing element (60) and set to input said auxiliary signal (70) and generate a corresponding auxiliary output alarm signal (71), in the case in which said auxiliary parameter has a greater value than a predetermined threshold value.
6. An apparatus as claimed in claim 1 or 5, characterized in that the first or second sensing element (20, 60) comprises an electromechanical transducer capable of detecting said waves, which waves comprise mechanical vibrations generated by said secretions and propagating through at least one side wall (10d) of the tubular duct (10).
7. An apparatus as claimed in claim 6, characterized in that said electromechanical transducer is a piezoceramic bimorph sensor positioned at least partly in contact with said side wall (10d).
8. An apparatus as claimed in claim 1 or 5, characterized in that said main parameter and/or auxiliary parameter consists of the amplitude of said waves.
9. An apparatus as claimed in claim 8, characterized in that the amplitude of said main signal (50) and/or said auxiliary signal (70) is a function of said main parameter.
10. An apparatus as claimed in claim 9, characterized in that the amplitude of said main signal (50) is proportional to said main parameter, the amplitude of the auxiliary signal (70) being proportional to said auxiliary parameter.
11. An apparatus as claimed in claim 10 characterized in that said first and/or second processing block (30, 80) comprises a filtering element (130) capable of amplitude-filtering said main signal (50) or said auxiliary signal (70) and generating the main (51) and/or auxiliary (71) output alarm signal in the case in which at least one of the spectral components of the main signal (50) or the auxiliary signal (70) has a greater amplitude than said threshold value.
12. An apparatus as claimed in claim 11, characterized in that said filtering element (130) comprises a diode (131).
13. An apparatus as claimed in claim 12, characterized in that said diode (131) is an emitting diode, preferably of the LED type, said main alarm signal (51) or auxiliary alarm signal (71) being obtained by a light signal generated by said emitting diode.
14. An apparatus as claimed in claim 1 or 5, characterized in that said tubular duct (10) further comprises a union element (10c) interposed between said first and second portions (10a, 10b).
15. An apparatus as claimed in claim 14, characterized in that said first sensing element (20) is positioned close to the second portion (10b) of the duct (10), preferably on said union element (10c).
16. An apparatus as claimed in claims 5 and 14, characterized in that said second sensing element (60) is mounted close to the union element (10c) of said duct (10), and is preferably housed within said union element (10c).
17. An apparatus as claimed in claim 5 or 13, characterized in that it further comprises a combination circuit (90) having a first input (90a) associated with said first processing block (30), and a second input (90b) associated with said second processing block (80), said combination circuit (90) being set to receive said main (51) and auxiliary (71) alarm signals and to generate a corresponding overall alarm signal (100) in the case in which a substantially simultaneous reception of said main (51) and auxiliary (71) alarm signals takes place.
18. An apparatus as claimed in claims 13 and 17, characterized in that said combination circuit (90) comprises:
- a first photodetector (91), positioned at said first input (90a) and optically coupled with the emitting diode (131) of the first processing block (30), said first photodetector (91) being capable of picking up an emission of the main alarm signal (51) and outputting a corresponding first transmission signal (101);
- a second photodetector (92), positioned at said second input (90b) and optically coupled with the emitting diode (131) of the second processing block (80), said second photodetector (92) being capable of picking up an emission of the auxiliary alarm signal (71) and outputting a corresponding second transmission signal (102);
- a logic circuit (93), preferably of the AND gate type, set to input said first and second transmission signals (101, 102) and to generate said overall alarm signal (100), in the case in which a substantially simultaneous reception of said first and second transmission signals (101, 102) takes place.
- a first photodetector (91), positioned at said first input (90a) and optically coupled with the emitting diode (131) of the first processing block (30), said first photodetector (91) being capable of picking up an emission of the main alarm signal (51) and outputting a corresponding first transmission signal (101);
- a second photodetector (92), positioned at said second input (90b) and optically coupled with the emitting diode (131) of the second processing block (80), said second photodetector (92) being capable of picking up an emission of the auxiliary alarm signal (71) and outputting a corresponding second transmission signal (102);
- a logic circuit (93), preferably of the AND gate type, set to input said first and second transmission signals (101, 102) and to generate said overall alarm signal (100), in the case in which a substantially simultaneous reception of said first and second transmission signals (101, 102) takes place.
19. An apparatus as claimed in claim 18, characterized in that said overall alarm signal (100) is a signal of the optical and/or acoustic type.
20. An apparatus as claimed in claim 13, characterized in that said emitting diode (131) is an infrared (IR) radiation emitter (140), said apparatus (1) further comprising an auxiliary monitoring circuit (110) provided with:
- a detecting element (111) coupled with the, emitting diode (131) and set to receive the IR radiation (140) from said emitting diode;
- a signalling circuit (112) connected downstream of said detecting element (111) and capable of outputting a warning signal (120) on the occurrence of a reduction in the intensity of the IR radiation received.
- a detecting element (111) coupled with the, emitting diode (131) and set to receive the IR radiation (140) from said emitting diode;
- a signalling circuit (112) connected downstream of said detecting element (111) and capable of outputting a warning signal (120) on the occurrence of a reduction in the intensity of the IR radiation received.
21. An apparatus as claimed in claim 20, characterized in that said detecting element is a photodiode (113) coupled with said emitting diode (131).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP01830733.0 | 2001-11-29 | ||
| EP01830733A EP1330983B1 (en) | 2001-11-29 | 2001-11-29 | An apparatus for monitoring the presence of secretions in the respiratory system of a patient |
| PCT/EP2002/012612 WO2003045250A2 (en) | 2001-11-29 | 2002-11-12 | An apparatus for monitoring the presence of secretions in the respiratory system of a patient |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2463385A1 true CA2463385A1 (en) | 2003-06-05 |
| CA2463385C CA2463385C (en) | 2010-01-12 |
Family
ID=8184790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002463385A Expired - Fee Related CA2463385C (en) | 2001-11-29 | 2002-11-12 | An apparatus for monitoring the presence of secretions in the respiratory system of a patient |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US7691070B2 (en) |
| EP (1) | EP1330983B1 (en) |
| JP (1) | JP2005510282A (en) |
| KR (1) | KR20040054762A (en) |
| CN (1) | CN100415174C (en) |
| AT (1) | ATE258764T1 (en) |
| AU (1) | AU2002351967A1 (en) |
| CA (1) | CA2463385C (en) |
| DE (1) | DE60101969T2 (en) |
| ES (1) | ES2210117T3 (en) |
| WO (1) | WO2003045250A2 (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10918308B2 (en) * | 2007-05-18 | 2021-02-16 | Koninklijke Philips N.V. | Respiratory component measurement system including a sensor for detecting orientation or motion |
| US8771204B2 (en) * | 2008-12-30 | 2014-07-08 | Masimo Corporation | Acoustic sensor assembly |
| WO2010091462A1 (en) * | 2009-02-11 | 2010-08-19 | Resmed Ltd | Acoustic detection for respiratory treatment apparatus |
| US8801613B2 (en) | 2009-12-04 | 2014-08-12 | Masimo Corporation | Calibration for multi-stage physiological monitors |
| RU2493887C2 (en) * | 2011-05-11 | 2013-09-27 | Государственное бюджетное образовательное учреждение высшего профессионального образования "Амурская государственная медицинская академия" Минздравсоцразвития Российской Федерации | Pharyngeal sieve for basal tracheobronchial secretion |
| US9707363B2 (en) * | 2012-03-29 | 2017-07-18 | Sonarmed Inc. | System and method for use of acoustic reflectometry information in ventilation devices |
| KR101557701B1 (en) * | 2013-12-16 | 2015-10-06 | 주식회사 칼라세븐 | Device for the relaxation of trachea and bronchial tube |
| WO2016063172A1 (en) * | 2014-10-24 | 2016-04-28 | Koninklijke Philips N.V. | Determining if airway clearance is required during respiratory therapy |
| WO2016154607A1 (en) | 2015-03-26 | 2016-09-29 | Sonarmed, Inc. | Improved acoustical guidance and monitoring system |
| EP3463061B1 (en) | 2016-05-31 | 2021-04-07 | Sonarmed Inc. | Acoustic reflectometry device in catheters |
| WO2019028420A1 (en) * | 2017-08-04 | 2019-02-07 | Sonarmed Inc. | Acoustic guided suction systems, devices, and methods |
| RU2743844C1 (en) * | 2020-01-15 | 2021-02-26 | Татьяна Петровна Мамровская | Device for producing basal tracheobronchial secretion |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3990435A (en) * | 1974-09-30 | 1976-11-09 | Murphy Raymond L H | Breath sound diagnostic apparatus |
| US4383534A (en) * | 1980-06-05 | 1983-05-17 | Peters Jeffrey L | Vital signs monitoring apparatus |
| US4607643A (en) * | 1984-11-09 | 1986-08-26 | Bell Floyd R | Endotracheal tube/stethoscope combination |
| US4917107A (en) * | 1984-11-09 | 1990-04-17 | Medi-Tube Corporation | Endotracheal tube/stethoscope combination |
| US5165417A (en) * | 1989-09-12 | 1992-11-24 | Murphy Jr Raymond L H | Lung sound detection system and method |
| US5056514A (en) * | 1989-10-30 | 1991-10-15 | Dupont Frank | Endotracheal stethoscope |
| US5191892A (en) * | 1991-09-10 | 1993-03-09 | Blikken Wayland G | Esophageal/stethoscopic gastric tube |
| US5882314A (en) * | 1991-12-17 | 1999-03-16 | Biomechanics, Inc. | Airway geometry imaging |
| US5655518A (en) * | 1995-08-22 | 1997-08-12 | Burden; Brant S. | Coupling device for a stethoscope and an endotracheal tube |
| US6168568B1 (en) * | 1996-10-04 | 2001-01-02 | Karmel Medical Acoustic Technologies Ltd. | Phonopneumograph system |
| US6790183B2 (en) * | 1998-10-14 | 2004-09-14 | Raymond L. H. Murphy | Method and apparatus for displaying body sounds and performing diagnosis based on body sound analysis |
| US20060243280A1 (en) * | 2005-04-27 | 2006-11-02 | Caro Richard G | Method of determining lung condition indicators |
-
2001
- 2001-11-29 DE DE60101969T patent/DE60101969T2/en not_active Expired - Lifetime
- 2001-11-29 EP EP01830733A patent/EP1330983B1/en not_active Expired - Lifetime
- 2001-11-29 AT AT01830733T patent/ATE258764T1/en not_active IP Right Cessation
- 2001-11-29 ES ES01830733T patent/ES2210117T3/en not_active Expired - Lifetime
-
2002
- 2002-11-12 AU AU2002351967A patent/AU2002351967A1/en not_active Abandoned
- 2002-11-12 CN CNB028228073A patent/CN100415174C/en not_active Expired - Fee Related
- 2002-11-12 JP JP2003546758A patent/JP2005510282A/en active Pending
- 2002-11-12 KR KR10-2004-7007068A patent/KR20040054762A/en not_active Application Discontinuation
- 2002-11-12 WO PCT/EP2002/012612 patent/WO2003045250A2/en active Application Filing
- 2002-11-12 CA CA002463385A patent/CA2463385C/en not_active Expired - Fee Related
- 2002-11-12 US US10/496,907 patent/US7691070B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2463385C (en) | 2010-01-12 |
| KR20040054762A (en) | 2004-06-25 |
| DE60101969T2 (en) | 2005-01-05 |
| EP1330983B1 (en) | 2004-02-04 |
| JP2005510282A (en) | 2005-04-21 |
| WO2003045250A2 (en) | 2003-06-05 |
| AU2002351967A1 (en) | 2003-06-10 |
| CN100415174C (en) | 2008-09-03 |
| US20050043607A1 (en) | 2005-02-24 |
| WO2003045250A3 (en) | 2003-08-28 |
| DE60101969D1 (en) | 2004-03-11 |
| EP1330983A1 (en) | 2003-07-30 |
| US7691070B2 (en) | 2010-04-06 |
| ES2210117T3 (en) | 2004-07-01 |
| CN1638697A (en) | 2005-07-13 |
| ATE258764T1 (en) | 2004-02-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9638672B2 (en) | System and method for acquiring acoustic information from a resonating body | |
| CA2463385A1 (en) | An apparatus for monitoring the presence of secretions in the respiratory system of a patient | |
| PL373350A1 (en) | Scattered-light smoke detector | |
| US6157311A (en) | Portable electro-magnetic radiation sensor warning device | |
| ATE513423T1 (en) | AT LEAST PARTIALLY IMPLANTABLE HEARING SYSTEM | |
| WO2000019771A8 (en) | Microphone having linear optical transducers | |
| HU183317B (en) | Apparatus to a receiver of fibre optics transmission system for emergency switching on, in the case of insufficient level of transmitting | |
| KR20180025374A (en) | Optical device for vehicle | |
| US5790050A (en) | Method and apparatus for a signal translator | |
| AU2001284548A1 (en) | Ear terminal for noise control | |
| ATE282878T1 (en) | ACTIVE DEVICE FOR ATTENUATION OF SOUND INTENSITY | |
| DK0615218T3 (en) | Method and device for compensating for the humidity of a diffuser light detector | |
| KR100313358B1 (en) | Aaaaa | |
| CN201203921Y (en) | Multifunctional active infrared inbreak detector | |
| CN113873387A (en) | Volume adjusting method and system based on earphone terminal | |
| SU1090387A1 (en) | Warning device | |
| JPS56106122A (en) | Mechanical vibration detector | |
| FR2864736B1 (en) | OPTICAL TRANSMISSION DEVICE | |
| JPS6462943A (en) | Telephone set | |
| JPH0373995U (en) | ||
| SE8304508D0 (en) | SET AND DEVICE TO PERFORM OPTICAL ROCK DETECTION | |
| JPH05205184A (en) | Method for gathering facility data | |
| EA200500787A1 (en) | FIRE SMOKE DETECTOR | |
| CA2273426A1 (en) | Electronic monitoring module for a protection and/or a monitoring system | |
| JPS59177693A (en) | Human body detector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20171114 |